Improvement in grain-separators



J, H. HAMAKER.

Grain Separaton Patented April 25,1855.

j &WM %2% %W UNITED STATES PATENT OFFICE.

JOHN II. HAMAKER, OF FREASE S STORE, OHIO IMPROVEMENT lNGRAlN-SEPARATOPLS,

Specification forming part of Lcttcrs Patents No. 47,& 17, dated April25, 1865.

To all whom it may concern:

Be it known that I, JOHN H. HAMAKER, of Frease s Store, in the county ofStark and State of Ohio, have inveuted a new and Improved GrainSeparatcrfor Thrashing Machines; and I do hereby declare that the following is afull and exact description thereof, referencebein g had to theaccompanyin g drawin gs, making part of this specificaticn-` Figure 1being a plan of the Separator; Fig. 2, a longitudinal vertical scctionthc'cof in a plane indicated by the line x m, Fig. 1; Figs. 3, 4, and 5,diagrams indicatin g modificatious of the method of producing the motionof the carrier.

Like letters designate corrcsponding parts in all of the figures.

The carrier B', on which the straw and grain are received from thethrasher, is Situated in a suitable frame, A, so that it 'inclinesupward from the thrasher, substantially as shown in Fig. 2. Aboutone-half of its length at the lower end has a close bottom withtransverse, serrate grooves a a in its upper surface, forwardly andupwardly abrupt, but gradually sloping downward, as shown, so that whena vibratory motion is giveu to the carrier both the straw and grain aregradually moved upward by giving th em a throw in that direction, andnot downward, at each vibration, this momentun carrying them along,while the carrier quickly make its return 'vibratory stroke. The upperhalf of the carrier has transverse slats c c, with spaces b b betweenthem wide enough to allow the grain to fall through, and there are teethor projections d d attached to the upper sides of the slats in irregularposition, their form in profile also being abrupt on the upper orforward edge or face, and gradually inclined on the lower or back edgeor face. The effect is to carry the straw forward and upward with'evenmore celerity and certainty' than the transverse ridges of the lowerhalf of the carrier, inasmuch as their irregular positions preventthestraw from accumulating in particular places by filling the spacesbetween the projections, ndktherby allowing what lies on top to slide aeIn Fig. 2 is shown the method which I prefer for giving the vibratorymotion to the carrier. Wrist brackets or bearings ii la k, on its underside receive crank n m respectively on shafts 0 D, Fig. 2, so that whenone, C, of the crank-shafts is revolveda compound or p-aud-down as wellas aforward and backward vibratory motion is communicated to thecarrier. The upper crank-shaft, D, is turned 'automatically by themotion of the carrier itself acting as a connecting-rod between it andthe shaft C; but as the carrier is liable not to carry the cranks m mover their; dead-points, I obviate the whole difiicult-y by theemploymcnt of a regular connecting-rod, E, which also receives cranks gh respectively on the shafts G and D, sit-` uated at right angles to theother cranks, 'i 'i and k k, of the carrier itself on the same shafts.Thus the notion is made sure, free, and easy. Iu Figs. 3, 4, and 5 areindicated possible modifications of the method above described. Thus, inFig. 3, instead of the double cranks and auxiliary connecting-rod, thecarrier B is mounted and pivoted on swinging parallel arms P P, whichare themselves `pivoted to some part of the frame A, and a simpleelastic connectin'g-rod, F, (which may be made of wood,) is bolted fastat one end to the under side of the carrier, while the other endreceives the crank of the driving-shaft. i

Fig. 6 represents a similar arrangement to i that shown in Fig. 3,except that the swing ing arms P P are Suspended from the frame A,instead of being supported by it. The only difference between the twomovements is, that in the former case the carrieris highest when theswinging arms are vertical, and in the latter case it is lowest whenthey are vertical. The effect is nearly the same on the carrier ineither case. p

In Fig. 4, instead of the swinging arms, there are cams Q Q on the underside of the carrier, which pass over supporting-rollers P P asjrhecarrier moves forward, thereby giving the vibratory Upward and downwardmoticn.

The gra-in falls through the upper slat portion of the carrier on ashoe, E, to which a vibratory motion is given directly from the carrierB, by means of a connecting-rod, G, the shoe being suspended by swingingarms p q, all substantially as shown in Fig. 2. i The gran falling uponthe shoe is chaifed therein hfiusual manner and conveyed away by spoutsThe motions of all the revolving shafts are received from thedriving-shaft M through bands t u 'v and their pulley in the ordinarymanner. i

What I claim as my invention, and (lesire to secure by Letters Patet, is

1. The Construction of the carrier with the close and open portions,together with the transverse grooves a a and. projeetions d d,substantially as and for the purposes herein specified.

2. Conveying the straw, and grain forward and pward on a single carrierby giving the said carrier a rapid vibratory motion through the means ofthe double sets of crauks and a-uxiliary eonneeting-rod, substantally asand for the purpose herein set forth.

3. Commuicating the vibratory motion to the shoe directly from thevibrating-earrier by means of the eonneeting-rod G, or its equivalent,as herein described.

J. H. HAMAKER.

VVitnesses ANsoN PEASE, D. B. WYANDT.

